Vulnerability · Published Oct 7, 2025 · Assigned by VulDB
CVE-2025-11356Tenda AC23 SetStaticRouteCfg sscanf buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in AC23 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 42.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda AC23 up to 16.03.07.52. Affected by this issue is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-327241 | Tenda AC23 SetStaticRouteCfg sscanf buffer overflow vdb-entry, technical-description
- VDB-327241 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #664923 | Shenzhen Tenda Technology Co.,Ltd. AC23 <= V16.03.07.52 Buffer Overflow third-party-advisory
- https://github.com/cymiao1978/cve/blob/main/12.md exploit
- https://www.tenda.com.cn/ product